Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://cctraff.ru/123?keyword=analog+integrated+circuit+design+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4376612/normal_5f8e2bf332c62.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369487/normal_5f93a3cca2b9d.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008c6f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008c6f.bin)
  • http://www.opentle.orgIn extracted file (font_01_sfnt_off00009e7c.bin)
  • https://cdn.shopify.com/s/files/1/0499/3826/8318/files/wps_office_manual_espaol.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7777/7061/files/prepositions_of_place_test_with_pictures.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9359/7601/files/vuzaxe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0457/6618/1028/files/20073446756.pdfIn PDF document text
  • https://s3.amazonaws.com/kokesatodixon/boziparofuzo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0700/8168/files/daliwu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0619/7415/files/68356829041.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/6432/6809/files/differentiating_instruction_for_learning_disabilities.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8312/9513/files/15256878824.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/7451/8691/files/23815901173.pdfIn PDF document text
  • https://s3.amazonaws.com/ravuxudibure/fosedajapipotaluxeval.pdfIn PDF document text
  • https://s3.amazonaws.com/sepawi/convert_file_to_dwg_online_free.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0508/4531/9333/files/shimmer_layout_android_example.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/1519/9646/files/hotstar_android_tv_apkmirror.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/5608/9256/files/adb_fastboot_flash_tools_android_5.0.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00008c6f.bin)
  • http://www.gnu.org/licenses/gpl.htmlIn extracted file (font_01_sfnt_off00009e7c.bin)

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